1. Department of Cardiology, Hospital General Universitario Gregorio Marañón, Calle Doctor Esquerdo, 46, 28007 Madrid, Spain
2. Facultad de Ciencias Biomédicas Universidad Europea, Facultad de Medicina Universidad Complutense, Madrid, Spain
3. CIBER Cardiovascular Diseases, Madrid, Spain
4. Hospital del Mar Medical Research Institute, Barcelona, Spain
5. Medical School, University of Vic-Central University of Catalonia, Vic, Spain
6. Centro Cardiovascular BV, Buenos Aires, Argentina
7. Department of Cardiology, Hospital Universitario Vall d´Hebron, Barcelona, Spain
8. Department of Cardiology, Hospital Universitario de la Princesa, Madrid, Spain
9. Institut del Cor, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
10. Facultad de Medicina, Autonomous University of Barcelona, Barcelona, Spain
11. School of Medicine, Queens University, Kingston, ON, Canada
12. Cardiovascular Research Foundation. Cardiovascular ICCC- Program, Research Institute Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain